CN2657616Y - Metal acetabulum outer cup of artificial hip joint - Google Patents
Metal acetabulum outer cup of artificial hip jointInfo
- Publication number
- CN2657616Y CN2657616Y CN 200320118383 CN200320118383U CN2657616Y CN 2657616 Y CN2657616 Y CN 2657616Y CN 200320118383 CN200320118383 CN 200320118383 CN 200320118383 U CN200320118383 U CN 200320118383U CN 2657616 Y CN2657616 Y CN 2657616Y
- Authority
- CN
- China
- Prior art keywords
- outer cup
- cup
- hip joint
- metal acetabulum
- acetabular bone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses an improved metal acetabulum outer cup of artificial hip joint which is characterized in that an external-sphere edge of a fundamental cup body of a metal acetabulum is provided with a convex part larger than the external sphere in radius. Compared with the existing technology, the metal acetabulum outer cup can enhance the intensity of the external edge of the metal acetabulum outer cup, make the metal acetabulum outer cup less liable in deformation, and increase the contact surface of the outer cup and the bone. The utility model enhances the service life of the product and eliminates the physiological burden of patients. The utility model is applicable to the hip bone replacement surgery for the hip joint disease.
Description
Affiliated technical field
This utility model relates to the artificial joint of medical domain.The outer cup of particularly a kind of improved artificial hip joint metal acetabular bone.
Background technology
The outer cup of artificial hip joint metal acetabular bone is a body implant.The alternative of implant into body hip joint when being used for the human hip pathological changes and need carrying out the orthopaedics replacement operation makes patient recover the physiological function of hip joint to a certain extent after the implantation, alleviating pain improves motion and improves the quality of living.In prior art, on the spherical outside surface edge of the basic cup of the outer cup of metal acetabular bone not disjunctor make than the big projection of spherical radius in addition, after installing or using certain hour, can cause the outer cup of metal outer rim to be out of shape because of insufficient strength, or contact surface is less easily loosening, increase the mortality of replacement, increased the weight of patient's physiological load.
Summary of the invention
The purpose of this utility model is to provide cup outside a kind of improved artificial hip joint metal acetabular bone, can overcome the outer cup of existing artificial hip joint metal acetabular bone outer rim and be out of shape, reaches the less easily loosening defective of contact surface because of insufficient strength.
Task of the present utility model realizes by this way: disjunctor is made than the big projection of this basic spherical outside surface radius on the spherical outside surface edge of the outer cup of this artificial hip joint metal acetabular bone basic cup of cup outside the metal acetabular bone.
From above-mentioned improvement as can be known, because disjunctor is made than the big projection of basic spherical outside surface radius on the basic cup spherical outside surface edge of cup outside the metal acetabular bone, increased the intensity of the outer cup of metal acetabular bone outer rim, increased the contact area of outer cup and osseous tissue, make it not yielding when installing with use, simultaneously more firm, be difficult for becoming flexible, improved the success rate of replacement.
When implementing this utility model, described projection should be greater than 0.01～20 millimeter of the basic cup spherical outside surface radius of the outer cup of metal acetabular bone, the projection number is not limit, and adjacent semidiameter is 0.01～5 millimeter, the radius of projection is crossed greater than spherical outside surface base radius or excessive installation, the too small purpose of strengthening outer rim intensity that do not reach again of then being difficult for of semidiameter.
Description of drawings
Fig. 1: be the sketch map of a kind of concrete structure of this utility model.
Fig. 2: be protruding enlarged drawing.
The specific embodiment
As shown in the figure, the mounting means of cup specification and product is basic identical outward for this utility model of being made up of projection 2 disjunctors of the outer basic cup 1 of cup of metal acetabular bone and four different radiis and existing artificial hip joint metal acetabular bone.Disjunctor is made the projection 2 greater than four different radiis of spherical outside surface base radius on the spherical outside surface edge of its difference basic cup 1 of cup outside the metal acetabular bone.Maximum protruding radius is greater than 1 millimeter of spherical outside surface base radius, and successively decreases into 4 rank by 0.25 millimeter successively.The projection 2 of the basic cup of the outer cup of this artificial hip joint metal acetabular bone 1, four different radiis adopts the metal material vacuum casting one disjunctor of human implantables to make, and also can adopt to forge the one disjunctor and make, and also can adopt the machine-tooled method disjunctor to make.
Claims (2)
1, the outer cup of a kind of artificial hip joint metal acetabular bone.Comprise the projection (2) that metal acetabular bone outer cup basic cup (1) and disjunctor are made, it is characterized in that disjunctor is made several projectioies (2) bigger than the spherical outside surface base radius of (1) on the spherical outside surface edge of glass basic cup (1) outside the metal acetabular bone.
2, the outer cup of artificial hip joint metal acetabular bone according to claim 1, the radius of the described projection of its feature (2) is 0.01～20 millimeter with the spherical outside surface base radius difference of (1), and protruding number is not limit, and adjacent semidiameter is 0.01～5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320118383 CN2657616Y (en) | 2003-11-24 | 2003-11-24 | Metal acetabulum outer cup of artificial hip joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320118383 CN2657616Y (en) | 2003-11-24 | 2003-11-24 | Metal acetabulum outer cup of artificial hip joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657616Y true CN2657616Y (en) | 2004-11-24 |
Family
ID=34347281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320118383 Expired - Fee Related CN2657616Y (en) | 2003-11-24 | 2003-11-24 | Metal acetabulum outer cup of artificial hip joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2657616Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352290A (en) * | 2005-12-15 | 2015-02-18 | 史密夫和内修有限公司 | Diffusion-hardened medical implant |
| CN107252369A (en) * | 2017-02-27 | 2017-10-17 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107252367A (en) * | 2017-02-28 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
| CN107252368A (en) * | 2017-03-01 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
-
2003
- 2003-11-24 CN CN 200320118383 patent/CN2657616Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104352290A (en) * | 2005-12-15 | 2015-02-18 | 史密夫和内修有限公司 | Diffusion-hardened medical implant |
| US9457126B2 (en) | 2005-12-15 | 2016-10-04 | Smith & Nephew, Inc. | Diffusion-hardened medical implant |
| US10543297B2 (en) | 2005-12-15 | 2020-01-28 | Smith & Nephew, Inc. | Diffusion-hardened medical implant |
| US11260145B2 (en) | 2005-12-15 | 2022-03-01 | Smith & Nephew, Inc. | Diffusion-hardened medical implant |
| CN107252369A (en) * | 2017-02-27 | 2017-10-17 | 吴栋 | A kind of integral type acetabular component and preparation method thereof |
| CN107252367A (en) * | 2017-02-28 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
| CN107252368A (en) * | 2017-03-01 | 2017-10-17 | 吴栋 | A kind of integral type double motion head and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041124 Termination date: 20111124 |